Also known as: Ulcers aphthous oral / Stomatitis aphhnous / Oral aphthous ulcer (disorder) / Aphthous stomatitis / Recurrent aphthous ulcer (disorder) / Aphthous ulceration (disorder) / Stomatitis, Aphthous / Stomatitis aphthous / Oral aphthae NOS (disorder) / Oral aphthae / Oral aphthae (disorder) / (Oral aphthae) or (mouth ulcer) / Aphtha / Aphtha (morphologic abnormality) / Aphthous ulcer of mouth (disorder) / Oral aphthae (disorder) [Ambiguous] / Oral aphthous ulcer [Ambiguous] / Oral aphthous ulcer / Ulcer aphthous oral / Ulcer aphthous / Aphthous ulceration of skin and/or mucous membrane (disorder) / Aphthous ulcer